I think cellphones are in fact PCs. Thinking of them as some other category is part of how Apple justifies it’s behaviour with regards to preventing you from installing whatever software you want on your own device; an action that would never fly on macs, but somehow and iPhone and an iPad don’t cause because they’re not PCs, they’re smartphone and tablets.

The only real difference between and iPad and a MacBook at this point is formfactor. There is no reason for not treating them both like the computers they are.